Home / 320,858.20-442,645.32-193,463.02

Finding the Fourth Proportional to 320,858.20, 442,645.32 and 193,463.02

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Solution

The fourth proportional to 320,858.20, 442,645.32 and 193,463.02 is: 266,895.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,858.20 : 442,645.32 = 193,463.02 : x
  2. Step 2: Convert to fraction form
    320,858.20/442,645.32 = 193,463.02/x
  3. Step 3: Cross multiply
    320,858.20x = 442,645.32 × 193,463.02
  4. Step 4: Simplify right side
    320,858.20x = 85,635,500,396.07
  5. Step 5: Solve for x
    x = 85,635,500,396.07/320,858.20
  6. Step 6: Final answer
    x = 266,895.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.